详细信息

边界是光滑开弧Helmholtz方程的边界积分法  ( EI收录)  

Boundary Integral Method for Helmholtz Equation with a Smooth Open Arc Boundary

文献类型:期刊文献

中文题名:边界是光滑开弧Helmholtz方程的边界积分法

英文题名:Boundary Integral Method for Helmholtz Equation with a Smooth Open Arc Boundary

作者:李瑞遐[1]

机构:[1]华东理工大学数学系

年份:1999

卷号:25

期号:4

起止页码:410

中文期刊名:华东理工大学学报(自然科学版)

外文期刊名:Journal of East China University of Science and Technology

收录:CSTPCD;;EI(收录号:2000045118558);Scopus;北大核心:【北大核心1996】;CSCD:【CSCD2011_2012】;

语种:中文

中文关键词:Helmholtz方程;积分方程;Galerkin法;收敛性

外文关键词:Helmholtz equation; integral equation; Galerkin method; convergence

摘要:由Helmholtz方程Dirichlet问题产生的第一类积分方程的核具有对数奇性,并且积分方程的解在开弧端点具有r-1/2奇性。将积分方程的核分成两部分,一部分包含特殊的奇性,另一部分不包含奇性,然后应用Galerkin法和配置法,最后讨论了近似解的收敛性。
The kernel in the first integral equation arising from Dirichlet problem of Helmholtz equation has a logarithmic singularity and the solution for the integral equation has r-1/2\|singularity at the endpoints of the open arc. The kernel is splitted into two parts so that the one contains a special singularity and the other doesn't contain any singularity. Galerkin method and collocation method are used and a convergence analysis is given.

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